Dynamic torque testing device for Luer taper

Abstract

The utility model belongs to the technical field of torque testing devices, and particularly relates to a Luer taper dynamic torque testing device which comprises a bearing box and a stepping motor, the right end of the bearing box is provided with an output interface, and the outer side of a left end shaft of the bearing box is provided with a first synchronous pulley. A force value sensor is arranged on the outer side of the bearing box left end shaft and located on the left side of the first synchronous belt wheel, a circuit sliding ring is arranged on the outer side of the bearing box left end shaft and located on the left side of the force value sensor, and a gas circuit rotating connector is arranged on the end face of the bearing box left end shaft. Torque is transmitted through the stepping motor and the synchronous belt, the torque acts on the output interface shaft through the force value sensor and the torque transmission shaft, and continuous rotation of the output interface shaft is realized under the action of the circuit slip ring and the gas circuit rotary interface, so that continuous and accurate transmission of the torque is realized, and dynamic torque testing of the Luer taper is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of torque testing devices, in particular to a Luer connector dynamic torque testing device. Background Art

[0002] As we all know, the Luer connector is a mechanical connector used to connect shafts, sleeves, couplings and other equipment. To apply torque to the Luer connector, you usually need to use a torque tool, such as a torque wrench or torque measuring instrument;

[0003] Currently, devices for applying torque to Luer connectors require continuous rotation to transmit torque to the Luer connector. Most existing devices are static and have limited rotation angles, which can easily cause cable entanglement and pose a safety threat.

[0004] In response to the above problems, this application document proposes a Luer connector dynamic torque testing device. Utility Model Content

[0005] The purpose of the utility model is to provide a dynamic torque test device for a Luer connector, which solves the problem that most existing test devices are static devices with limited rotation angles, which easily cause entanglement of cable lines and generate safety issues.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a Luer connector dynamic torque test device, comprising a bearing box and a stepper motor, wherein the right end of the bearing box is provided with an output interface, a first synchronous pulley is provided on the outer side of the shaft at the left end of the bearing box, and a force value sensor is provided on the outer side of the shaft at the left end of the bearing box and on the left side of the first synchronous pulley;

[0007] A circuit slip ring is provided on the outside of the left end shaft of the bearing box and on the left side of the force sensor. An air path rotation interface is provided on the end face of the left end shaft of the bearing box. A synchronous pulley 2 is provided on the end face of the output shaft of the stepping motor. A synchronous belt is provided on the surface of the synchronous pulley 2 and the surface of the synchronous pulley 1.

[0008] Preferably, once the force sensor contacts the synchronous pulley, a torque transmission shaft is provided inside the force sensor, and the torque transmission shaft can be used for subsequent calculation of the torque force value.

[0009] Preferably, the base of the bearing box is fixedly connected to a fixing plate, the inside of the fixing plate is fixedly connected to a guide plate, the outer side of the guide plate is slidably sleeved with a support seat, the support seat is slidably connected to the fixing plate, the base of the bearing box is fixedly installed with a servo motor on the left side of the fixing plate, the output shaft of the servo motor is fixedly connected to a screw barrel, the inner wall of the screw barrel is connected to a screw through a thread, the screw is fixedly connected to the support seat, and a slide groove is provided on the left side of the fixing plate, which can be driven by the servo motor, screw barrel and other structures to move the screw, thereby pushing the support seat to move, so as to drive the tensioning wheel to move and tension the synchronous belt.

[0010] Preferably, the mounting seat at the left end of the support seat is equipped with a tensioning wheel through a mounting shaft, and the tensioning wheel is in contact with the synchronous belt. Through the setting of the tensioning wheel, the synchronous belt can be tensioned to ensure the force transmission effect.

[0011] Preferably, a support block is fixedly connected to the upper end of the support seat, and the support block is slidably connected to the guide plate. By setting the support block, the movement stability of the support seat and other structures can be improved.

[0012] Preferably, a slide plate is slidably connected to the inner wall of the slide groove, and the slide plate is fixedly connected to the screw rod. The screw rod can be guided by the coordinated use of the slide plate and the slide groove.

[0013] Preferably, the guide plate is rectangular as a whole and is made of high-chromium cast iron. The high-chromium cast iron material provides the guide plate with good wear resistance.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model transmits torque through a stepper motor and a synchronous belt. The torque acts on the output interface shaft through a force sensor and a torque transmission shaft. Under the action of the circuit slip ring and the gas circuit rotary interface, the output interface shaft is continuously rotated, thereby achieving continuous and accurate transmission of torque to complete the dynamic torque test of the Luer connector.

[0016] 2. The utility model can push the screw to move through the action of the servo motor, screw barrel and other structures. Under the action of the slide plate and the slide groove, the screw can be guided to ensure the stable movement of the screw, thereby driving the support seat to move, so that the tensioning wheel can tension the synchronous belt to ensure the force transmission effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For the utility model Figure 1 Side view of;

[0019] Figure 3 For the utility model Figure 2 Enlarged view of the servo motor;

[0020] Figure 4 For the utility model Figure 3 Enlarged view of point A.

[0021] In the figure: 1. Bearing box; 2. Stepper motor; 3. Output interface; 4. Synchronous pulley 1; 5. Force sensor; 51. Torque transmission shaft; 6. Circuit slip ring; 7. Air circuit rotation interface; 8. Synchronous pulley 2; 9. Synchronous belt; 10. Fixed plate; 11. Guide plate; 12. Support seat; 13. Tensioner; 14. Support block; 15. Servo motor; 16. Screw barrel; 17. Screw; 18. Slide groove; 19. Slide plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 A Luer connector dynamic torque test device includes a bearing box 1 and a stepper motor 2. The right end of the bearing box 1 is provided with an output interface 3. A synchronous pulley 4 is provided on the outside of the left end shaft of the bearing box 1. A force sensor 5 is provided on the outside of the left end shaft of the bearing box 1 and on the left side of the synchronous pulley 4. The force sensor 5 is in contact with the synchronous pulley 4. A torque transmission shaft 51 is provided inside the force sensor 5. The torque transmission shaft 51 can be used for subsequent torque value calculation.

[0024] A circuit slip ring 6 is provided on the outside of the left end shaft of the bearing box 1 and on the left side of the force sensor 5. An air path rotation interface 7 is provided on the end face of the left end shaft of the bearing box 1. A synchronous pulley 2 8 is provided on the end face of the output shaft of the stepper motor 2. A synchronous belt 9 is provided on the surface of the synchronous pulley 2 8 and the synchronous pulley 1 4.

[0025] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4The base of the bearing box 1 is fixedly connected to a fixed plate 10, and a guide plate 11 is fixedly connected to the inside of the fixed plate 10. The outer side of the guide plate 11 is slidably sleeved with a support seat 12, and the support seat 12 is slidably connected to the fixed plate 10. The base of the bearing box 1 is fixedly installed with a servo motor 15 on the left side of the fixed plate 10. The output shaft of the servo motor 15 is fixedly connected to a screw barrel 16. The inner wall of the screw barrel 16 is threadedly connected to a screw 17, and the screw 17 is fixedly connected to the support seat 12. A slide groove 18 is provided on the left side of the fixed plate 10. Through the action of the servo motor 15, screw barrel 16 and other structures, the screw 17 can be driven to move, thereby pushing the support seat 12 to move, so as to drive the tensioning wheel 13 to move, and tighten the synchronous belt 9.

[0026] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The guide plate 11 is rectangular as a whole and is made of high chromium cast iron. The guide plate 11 has good wear resistance through the setting of high chromium cast iron material. The mounting seat at the left end of the support seat 12 is equipped with a tensioning wheel 13 through the mounting shaft. The tensioning wheel 13 contacts the synchronous belt 9. Through the setting of the tensioning wheel 13, the synchronous belt 9 can be tensioned to ensure the transmission effect of force. The upper end of the support seat 12 is fixedly connected with a support block 14, and the support block 14 is slidably connected to the guide plate 11. Through the setting of the support block 14, the movement stability of structures such as the support seat 12 can be improved. The inner wall of the slide groove 18 is slidably connected with a slide plate 19, and the slide plate 19 is fixedly connected to the screw 17. The screw 17 can be guided by the coordinated use of the slide plate 19 and the slide groove 18.

[0027] The specific implementation process of this utility model is as follows: When the Luer connector dynamic torque test device is needed, the stepper motor 2, synchronous belt 9, and other structures are configured to transmit torque. The torque acts on the shaft of the output interface 3 through the force sensor 5 and torque transmission shaft 51. The distance between the torque transmission shaft 51 and the rotation center is a fixed value, which serves as the force transmission arm. The applied torque value is calculated by multiplying the force value of the force sensor 5 by the force transmission arm. Through the action of the circuit slip ring 6 and the air circuit rotary interface 7, the output interface 3 shaft can be continuously rotated, thereby achieving continuous and accurate torque transmission, completing the dynamic torque test of the Luer connector.

[0028] During this process, the servo motor 15 is started to drive the output shaft to rotate, so as to drive the screw barrel 16 to rotate. Under the relationship of the threaded connection, the screw 17 can be driven to move, and when the screw 17 moves, the slide plate 19 can be driven to slide along the inner wall of the slide groove 18 to guide the screw 17 to ensure the stable movement of the screw 17. When the screw 17 moves, it can drive the support seat 12 to move along the surface of the guide plate 11, and then drive the tensioning wheel 13 to move, so that the tensioning wheel 13 tensions the synchronous belt 9 to ensure the force transmission effect. When the support seat 12 moves, it can drive the support block 14 to slide along the surface of the guide plate 11 to ensure the stable movement of the support seat 12.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Luer connector dynamic torque test device, comprising a bearing box (1) and a stepper motor (2), characterized in that: The right end of the bearing box (1) is provided with an output interface (3), the outer side of the left end shaft of the bearing box (1) is provided with a synchronous pulley (4), and the outer side of the left end shaft of the bearing box (1) and on the left side of the synchronous pulley (4) is provided with a force value sensor (5); A circuit slip ring (6) is arranged outside the left end shaft of the bearing box (1) and on the left side of the force sensor (5); an air path rotation interface (7) is arranged on the end face of the left end shaft of the bearing box (1); a synchronous pulley 2 (8) is arranged on the end face of the output shaft of the stepping motor (2); and a synchronous belt (9) is arranged on the surfaces of the synchronous pulley 2 (8) and the synchronous pulley 1 (4).

2. A Luer connector dynamic torque test device according to claim 1, characterized in that: The force sensor (5) is in contact with the synchronous pulley one (4), and a torque transmission shaft (51) is arranged inside the force sensor (5).

3. A Luer connector dynamic torque test device according to claim 1, characterized in that: The base of the bearing box (1) is fixedly connected to a fixing plate (10), the interior of the fixing plate (10) is fixedly connected to a guide plate (11), the outer side of the guide plate (11) is slidably sleeved with a support seat (12), the support seat (12) is slidably connected to the fixing plate (10), the base of the bearing box (1) is fixedly installed with a servo motor (15) on the left side of the fixing plate (10), the output shaft of the servo motor (15) is fixedly connected to a screw barrel (16), the inner wall of the screw barrel (16) is connected to a screw rod (17) by a thread, the screw rod (17) is fixedly connected to the support seat (12), and a slide groove (18) is provided on the left side of the fixing plate (10).

4. A Luer connector dynamic torque test device according to claim 3, characterized in that: A tensioning wheel (13) is mounted on the mounting seat at the left end of the support seat (12) via a mounting shaft, and the tensioning wheel (13) is in contact with the synchronous belt (9).

5. A Luer connector dynamic torque test device according to claim 3, characterized in that: A support block (14) is fixedly connected to the upper end of the support seat (12), and the support block (14) is slidably connected to the guide plate (11).

6. A Luer connector dynamic torque test device according to claim 3, characterized in that: A slide plate (19) is slidably connected to the inner wall of the slide groove (18), and the slide plate (19) is fixedly connected to the screw rod (17).

7. A Luer connector dynamic torque test device according to claim 3, characterized in that: The guide plate (11) is in a rectangular shape as a whole and is made of high-chromium cast iron.

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